Improvement in cotton-gins



` brush-cylinder.

` der pulley d.

mi him.

f CHARLES,G VSARGE'NT;or wESTroRD, MASSACHUSEMS.y

' *f g l Lenmmanrrvasasco, .zum May 11,1869.-

RVIPR'VEMENT IN COTTON-G-NS.

The Schedule referred to inthese-Lettersfatent andw'making part of the same.

. brating fingers, worm, and part of ginning-cylinder.

Figure 5 `isa `top vieri1 of g. 4, showing crank-pin i motion. J

Figures .6 and 7 are views of fine and coarse rakes and ginning-cylinder. u

A A is the main frame. B, the main shaft, with crank-handle a.

C, receptacle for the unginned cotton.

D, the hopper. y l. a v

E, the toothed or ginning-cylinder.

F, a grate or pins, forming rear bottom of hopper.

G, the rst oscillating'rake. H, the` second oscillating rake;

. I is af'stationary shell-guard, having on its edge a `J is a reciprocating toothed `coi nb, or linger-bar. K is a screw-Worm, with broad'blade running inthe trough of theshell-guard in rear of the reciprocating bar.

L is a brush-cylinder. A M, a spout from the worm-trough.

N, an opening in the caslngof the brush-cylinderfy b is apulley on the outer end of the main shaft.

c is apulley on thefouter end of the-shafttof the burlring-cylinder. y,

d is a pulley on the outerl end of Athe shaftof the 'ug is a small pulley also on the outer end of the lmain shaft.` Y i l e is a pulley onthe outer end of the -wornifshaft. f is a gear (bevi-billed)` 011 the crank nd of the' main shaft. Y. l

' if g is `anotherbevelled-gear wheel, meshing into f,

and having a shaft, o, passing `through a box, s, and having, upon its upper end, a crank-pin, p, taking in'to a'slot, q, at right ang-les toa rod, r, attached to the comb or ngerbar J y i t isa rod or lever, attached at oneend to a variable crank-pin, h, ,on the end df. the shaft of the toothed or i ginning-cylinder E, and at the other, to the slotted rod j,which is attached to theend of the shaft of the osv cillating rake'G.` i Y i. k is a gear-wheel on` the end of -the shaft of rake G, and meshing into gear-whee1 l on the end of shaft of rake H, which shafts run in boxes t.

,m is a band passing round pulleys b `and c, and unn is a band passing'rouud pulleys w and e.

u is the casing of brushcylinder, and

fu, apron,

By turning the crank, motion 1s imparted to the bnr- K ringcyliuder and brush-cylinder by means of `band m,

and to the worm by means of band n.

4Motion is imparted from shaft of burring-cylinder,

by means of lever -i j, to the oscillating rakes G and H. *Y

Motion is imparted fromthe main shaft, by means of bevelled gears f and g, shaft o, crank-pinl and slot bar J.

The'operation is as follows:V i f. The seed-cotton, or other fibre, with its foreign matter, is placed in its receptacle O,.and from there pushed or dropped in small quantities into. the hopper and upon the surface of the ginning-cylinder, which may `and rod p, g, and fr, to the vibrating comb or linger- `be a line-toothed or roughened surface, as shown.

The surface of the cylinder seizes on the fibre, and

, carries it and its seed forward to the first oscillating rake,

whose teeth arefar enough apart to allow a seed and its bre to pass.

A portion of the fibre is carried on through the teeth of the rake, the rest is thrown back, and the whole prevented from clogging, by the action of the rake, until-it is broken up or separated, and passed through the first rake.

When seed `and iibre pass the rst rake, they are4 carried forward to the stationary shell-guard, which has a working-edge of raw hide, or other partially-elastic Substance, which can be set so close as to impinge on-the surface of the ginningcylinder without injury. Here the fibre is drawn between the stationary shel]- guard and the surface ofthe cylinder. v f

'lo facilitate the work, the 'vibrating comb or finger-` bar, which is placed just above the guardfedge, plays back and forth, and turns the seed over and around, so that all its sides come in contact with the ginningsurface, and .its fibre is entirelystlipped oi. This operation is also facilitated by the oscillating motion of the second rake, Whose teeth vare set apart sufficiently to allow a cotton-seed divested of libre to pass through,

and which, tossing the seeds and fibre back until the `iibre is all cleaned ci', allo w the seeds to pass through Ainto thetrough on the back of the stationaryshellguard, Within reach of the blades of the worm. By this Worrnthe seeds are passed along tothe spout and A The fibre being drawn forward and downward by the ginning-cylinder until it reaches the brush-cylinder, is brushed oii1 and thrown out.

1. The raw hide, or partially-elastic working-edge of a stationary guard, in combination with a ginning or cleaning-cylinder, substantially as described.

2. The reciprocating comb or'finger-bar in combi-'w nation with a stationary guard and ginning or cleaning-cylinder, the whole constructed to operate'substantially as described.

3. The combination of one or more oscillating rakes witha ginning or cleaning-cylinder, substantially as described.

In testimony whereof, I have hereunto subscribed.' my name.

` OHAS. G. SARGENT. Witnesses:

AUH. CARYL,

H. W. B. WIGHTMAN. I 

